Drew Smith ESSC 311 2nd Grade Lesson Plan Standard: E.FE.02.21- Describe how rain collects on the surface of the Earth and flows downhill into bodies of water (streams, rivers, lakes, oceans) or into the ground. The Teaching Process Lesson Overview: After the completion of this lesson, the students will be able to: Identify how water moves downhill Discuss how water collects into bodies of water Discuss how water flows into the ground Materials: (Per group) Tray (to hold water) Soil Scoop or spoon Food coloring Water Cup/beaker Books (to tilt tray) Tupperware lids Sponges or cotton swabs 5E Lesson Plan Format: Engage: The students will be shown a video on a website that explains how rain is collected and flows downhill into drainages, streams, and large bodies of water. The video is located at http://vimeo.com/11060142. After, the video will be followed by an interactive look at the way water moves located on the site below. http://www.epa.gov/safewater/kids/flash/flash_watercycle.html. This site will help explain how water is absorbed into the ground. Explore: The students will get into groups of two and create their watershed models using the materials provided: glass dish, soil, Tupperware lids, sponges or cotton swabs, and books to tilt the model. The watershed is created by putting soil into the glass dish, and placing the sponge on one end of the dish, and the lid just in front of the sponge. The model will be tilted and then the colored water will be poured over the model, which will show where the lakes and streams are. The lid will act as the body of water, and the sponge or cotton will act as the soil absorbing the water. The water will be visible when absorbed by the sponge or cotton and then by looking at the bottom of the glass dish. Before proceeding with the activity the teacher will explain the set-up process for the watershed model. During the activity the teacher will visit each group to see how the students are doing, if help is needed the teacher will assist. The students will be asked to pay close attention to how the water flows, where it collects, and where it is absorbed. Discussion between students should be encouraged. Explain: Here, we will discuss the students’ findings resulting from the explore activity as a class. The teacher will go further on to explain that a watershed is the area of land where all of the water that is under it or drains off of it goes into the same place. Watersheds vary in shapes and sizes. They cross county, state, and national boundaries. The teacher will explain to the students that the term associated with rain flowing downhill to bodies of water is called surface runoff. It is named this because the water runs off the surface into the bodies of water because the ground is at full capacity and the excess water from rain, meltwater, or other sources flows over the land. Sometimes the water does not soak into the ground because the water is running over a surface such as a rock that does not allow water to be absorbed, or sometimes because of the grade of the land is too steep. Next, the teacher will discuss the rain flowing down hill into the ground. The rain is able to flow into the ground because it is a porous or spongy surface. The water flows into the ground and is absorbed by things such as plants, or collects into underground aquifers. Vocabulary: Surface runoff- Water flow that occurs when soil is at full capacity and the excess water from rain, meltwater, or other sources flows over the land. Capacity- The ability to contain or hold things, like liquid. Absorb- To suck up or take up; a sponge absorbs water. Grade- A slope or gradual increase in height of the ground, like a hill or mountain. Porous- Able to be filled with water. Aquifer- Water that collects underground. Supplies water for wells, and springs. For better terms, it’s like an underground lake. Elaborate: For this activity the students will think about how water flows. They will be given a few questions; “Why is it important for water to flow down?” “ What if water did not flow down?” “What would happen to our rivers, ponds, lakes, and oceans?” They will be asked to write down their answers to the questions on a piece of paper that they will be handing in at the end of class. The students will then draw a diagram of where water goes when it falls to the surface. They must include some of the vocabulary discussed earlier in class, and must label the bodies of water, and the direction the water is flowing. Evaluate: The student’s answers to the question provided by the teacher will be graded along with the diagrams they created. Resources: http://vimeo.com/11060142. http://www.epa.gov/safewater/kids/flash/flash_watercycle.html. http://www.cacaponinstitute.org/Lesson Plans/PWC Watershed Lesson Plans.pdf http://people.emich.edu/tkovacs/